Cp2TiCl catalyzed styrene grafting from epoxide functionalized silica nanoparticles

POLY 478

Alexandru D. Asandei, asandei@ims.uconn.edu and Gobinda Saha, gobinda@ims.uconn.edu. Institute of Materials Science and Department of Chemistry, University of Connecticut, 97 North Eagleville Road, Storrs, CT 06269
Silica nanoparticles with an average diameter of 20-22 nm were synthesized by the Stöber process and were functionalized by the condensation of their surface silanol groups with (3-glycidoxypropyl) dimethylethoxysilane. The epoxide functionalities were used as initiators for the Cp2TiCl catalyzed radical polymerization of styrene. The functionalization and the styrene grafting were confirmed by a combination of FTIR, TEM and GPC analysis.